CN202742196U - Clamp for precise grinding of inner hole of annular part - Google Patents
Clamp for precise grinding of inner hole of annular part Download PDFInfo
- Publication number
- CN202742196U CN202742196U CN201220476370.9U CN201220476370U CN202742196U CN 202742196 U CN202742196 U CN 202742196U CN 201220476370 U CN201220476370 U CN 201220476370U CN 202742196 U CN202742196 U CN 202742196U
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- main body
- hole
- ring
- work pieces
- shaped work
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- Expired - Lifetime
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Abstract
The utility model discloses a clamp for precise grinding of the inner hole of an annular part. The clamp comprises a clamp main body (1), wherein the clamp main body (1) consists of a front-end large cylinder, a rear-end small cylinder and a cone connecting the large cylinder with the small cylinder; the clamp main body (1) is provided with a central through hole which axially penetrates through the main body; a plurality of threaded holes are formed in the hole wall along the circumferential direction; the threaded holes are correspondingly screwed with locking screws (2) and fastening nuts (3); elongated holes (4) which penetrate through the main body hole wall in the radial direction are distributed on the clamp main body (1) along the circumference; the elongated holes (4) axially extend to the rear end of the clamp main body (1) from an opening of a large hole; the rear end of the central through hole is provided with an internal thread matched with an external thread of a pull rod (7) which axially moves on machine tool equipment for grinding the inner hole of the annular part; a clamping sleeve (6) which is sleeved outside the clamp main body (1) is fixed on the machine tool equipment for grinding the inner hole of the annular part; and the front end of a central hole of the clamping sleeve (6) is provided with a conical surface matched with a conical surface of the clamp main body (1).
Description
Technical field
The utility model relates to a kind of frock clamp, specifically is a kind of anchor clamps of ring-shaped work pieces endoporus precise finiss, the anchor clamps of the endoporus precise finiss of the ring-shaped work pieces of the large height diameter ratio of particularly suitable.
Technical background
To ring-shaped work pieces endoporus precise finiss the time, usually come the clamping ring-shaped work pieces with anchor clamps at present, with the relative position of definite ring-shaped work pieces and milling tool, and this type of part clamping.The anchor clamps of existing clamping ring-shaped work pieces generally adopt scroll chuck, the weak point of its existence is: during the clamping ring-shaped work pieces, the time that the center coaxial line (concentricity) of ring-shaped work pieces center and milling tool is consumed is longer, and after a ring-shaped work pieces grinds and finishes, need to reorientate the center of ring-shaped work pieces during the next ring-shaped work pieces of clamping, if ring-shaped work pieces length is longer, then more be difficult to ensure the concentricity of card ring-shaped work pieces and milling tool, make error larger, the product quality that processes is relatively poor.
The utility model content
Technical problem to be solved in the utility model is: a kind of energy quick-clamping ring-shaped work pieces is provided and need reorientate the anchor clamps that the ring-shaped work pieces center also can guarantee the grinding annular inner bore of part of ring-shaped work pieces cylindrical and bore concentricity.
In order to solve the problems of the technologies described above, grinding jig is achieved through the following technical solutions in the utility model: it comprises jig main body, described jig main body is by the big column of front end, the small column of rear end consists of with the cone that is connected large small column, described jig main body is provided with the central through hole of axial perforation main body, the front end of central through hole is that diameter is greater than the hole of folded ring-shaped work pieces external diameter, the edge is circumferentially with a plurality of radial screw bore on the perisporium of hole, described screwed hole one by one correspondence is combined with lock-screw and fastening nut, described jig main body circumferentially has the strip hole that radially connects the main body hole wall, described strip hole extends axially to the jig main body rear end from the macropore opening part, the rear stomidium face of described central through hole is provided with the internal thread that matches with the external screw thread of axially movable pull bar on the machine tool that grinds annular inner bore of part, grind on the machine tool of annular inner bore of part and be fixed with the banding cover that is linked in outside jig main body rear end and the stage casing, the front end of described banding cover centre bore is provided with the taper seat that the taper seat with the cone of jig main body matches.
During clamping, before processing, regulate the lock-screw of central through hole front end (such as right-hand member in the accompanying drawing 2), make the terminal concentric circles diameter that consists of of lock-screw be slightly less than ring-shaped work pieces outside diameter to be processed, screw fastening nut, use emery wheel that the lock-screw end is polished, make its concentric circles that consists of identical with the external diameter of ring-shaped work pieces to be processed, after inserting ring-shaped work pieces to be processed, under the effects such as power source such as cylinder, drive ring-shaped work pieces pull back (as in the accompanying drawing 2 left) do axially-movable, because the banding cover maintains static and is linked in outside the main body anchor clamps, therefore force the extruding of the jig main body conical surface and the banding cover conical surface, cause strip hole to clamp fully, and then ring-shaped work pieces to be processed is clamped fully.When ring-shaped work pieces is carried out attrition process, the emery wheel of same datum is to the processing of polishing of ring-shaped work pieces endoporus when using with polishing lock-screw 2, like this can so that the error of the concentricity of ring-shaped work pieces inside and outside circle less than 0.01MM, the operating procedure simple and fast, cost is lower.
After adopting said structure, the advantage that the utility model has is: described use lock-screw presss from both sides the stationary annular part, makes the center coaxial line (concentricity) of ring-shaped work pieces center and milling tool, and is simple to operate, and the time that consumes is shorter; The concentric circles external diameter that described lock-screw end consists of is identical with the external diameter of ring-shaped work pieces to be processed, screw fastening nut, further fixing and locking screw, prevent the rotation of lock-screw, so both guaranteed the round cavity coaxial alignment in center and the jig main body hole of ring-shaped work pieces, and determined the size of ring-shaped work pieces outside diameter, played positioning action, when the next ring-shaped work pieces of processing, because tie down screw has been determined the diameter of ring-shaped work pieces cylindrical, guaranteed ring-shaped work pieces and round cavity coaxial alignment, therefore a need be put into ring-shaped work pieces to be processed between the lock-screw and get final product, and need not to reorientate.Described power source drives jig main body and does backward axially-movable, forces the jig main body conical surface and banding cover to push, and the clamping by the conical surface causes strip hole to clamp fully, further clamps ring-shaped work pieces, reduces the error that the anchor clamps band causes, and has improved product accuracy.When releasing jig main body, strip hole opens, and can conveniently take out ring-shaped work pieces and carry out next part processing.When the long ring-shaped work pieces of processing length,, ring-shaped work pieces can be clamped fully the deficiency of avoiding scroll chuck to exist because the round cavity height is enough.
Be evenly distributed to few 3 projections in the described jig main body round cavity, the ring-shaped work pieces end face is played the end face fixation, before the processing ring-shaped work pieces, simultaneously projection 5 upper surfaces are also used grinder buffing, make the projection upper surface be in same level, make ring-shaped work pieces more firm, guarantee the good end face squareness of ring-shaped work pieces, avoid the impact of anchor clamps itself, improve the concentricity of ring-shaped work pieces, thereby improve the accuracy of product.
Description of drawings
Fig. 1 is the right view that the utility model grinds annular inner bore of part anchor clamps embodiment.
Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1.
Fig. 3 is the outside drawing that the utility model grinds overcoat internal clamp embodiment.
Shown in the figure, the 1-jig main body, the 2-lock-screw, 3-tightens up nut, the 4-strip hole, the 5-projection, 6-banding cover 7-moves pull bar.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Such as Fig. 1, shown in Figure 2, this is a kind of anchor clamps that grind annular inner bore of part, it comprises jig main body 1, described jig main body 1 is by the big column of front end, the small column of rear end consists of with the cone that is connected large small column, described jig main body 1 is provided with the central through hole of axial perforation main body, the front end of central through hole is that diameter is greater than the hole of folded ring-shaped work pieces external diameter, the edge is circumferentially with a plurality of radial screw bore on the perisporium of hole, described screwed hole one by one correspondence is combined with lock-screw 2 and fastening nut 3, described jig main body 1 circumferentially has the strip hole 4 that radially connects the main body hole wall, described strip hole 4 extends axially to jig main body 1 rear end from the macropore opening part, the rear stomidium face of described central through hole is provided with the internal thread that matches with the external screw thread of axially movable pull bar 7 on the machine tool that grinds annular inner bore of part, grind and be fixed with the banding cover 6 that is linked in outside jig main body 1 rear end and the stage casing on the machine tool of annular inner bore of part, the front end that described banding overlaps 6 centre bores is provided with the taper seat that the taper seat with the cone of jig main body 1 matches.
Above the utility model and embodiment thereof are described, this description does not have restricted, and shown in the accompanying drawing also is one of embodiment of the present utility model, and actual structure is not limited to this.If generally speaking those of ordinary skill in the art is enlightened by it, create aim in the situation that do not break away from the utility model, without the creationary frame mode similar to this technical scheme and the embodiment of designing, all should belong to protection domain of the present utility model.
Claims (5)
1. the anchor clamps of a ring-shaped work pieces endoporus precise finiss, it is characterized in that: it comprises jig main body (1), described jig main body (1) is by the big column of front end, the small column of rear end consists of with the cone that is connected large small column, described jig main body (1) is provided with the central through hole of axial perforation main body, the front end of central through hole is that diameter is greater than the hole of folded ring-shaped work pieces external diameter, the edge is circumferentially with a plurality of radial screw bore on the perisporium of hole, described screwed hole one by one correspondence is combined with lock-screw (2) and fastening nut (3), described jig main body (1) circumferentially has the strip hole (4) that radially connects the main body hole wall, described strip hole (4) extends axially to jig main body (1) rear end from the macropore opening part, the rear stomidium face of described central through hole is provided with the internal thread that matches with the external screw thread of axially movable pull bar (7) on the machine tool that grinds annular inner bore of part, grind on the machine tool of annular inner bore of part and be fixed with the banding cover (6) that is linked in outside jig main body (1) rear end and the stage casing, the front end of described banding cover (6) centre bore is provided with the taper seat that the taper seat with the cone of jig main body (1) matches.
2. the anchor clamps of ring-shaped work pieces endoporus precise finiss according to claim 1, it is characterized in that: described screwed hole distributes along even circumferential.
3. the anchor clamps of ring-shaped work pieces endoporus precise finiss according to claim 1, it is characterized in that: the quantity of described screwed hole and the lock-screw (2) that matches with it and fastening nut (3) is 4 ~ 8.
4. the anchor clamps of ring-shaped work pieces endoporus precise finiss according to claim 1, it is characterized in that: in described jig main body (1) the front end macropore along circumferentially being distributed with 3 or 3 with upper protruding block (5), described 3 or 3 with the front end face of upper protruding block (5) all on the same cross section of big column.
5. the anchor clamps of ring-shaped work pieces endoporus precise finiss according to claim 1 is characterized in that: described strip hole (4) circumferentially evenly distributes along jig main body (1), and the quantity of described strip hole (4) is at least 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220476370.9U CN202742196U (en) | 2012-09-18 | 2012-09-18 | Clamp for precise grinding of inner hole of annular part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220476370.9U CN202742196U (en) | 2012-09-18 | 2012-09-18 | Clamp for precise grinding of inner hole of annular part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202742196U true CN202742196U (en) | 2013-02-20 |
Family
ID=47701644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220476370.9U Expired - Lifetime CN202742196U (en) | 2012-09-18 | 2012-09-18 | Clamp for precise grinding of inner hole of annular part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202742196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107457662A (en) * | 2017-09-26 | 2017-12-12 | 江苏万达特种轴承有限公司 | The grinding attachment that a kind of bearing outer ring ball track once loads and unloads with step |
-
2012
- 2012-09-18 CN CN201220476370.9U patent/CN202742196U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107457662A (en) * | 2017-09-26 | 2017-12-12 | 江苏万达特种轴承有限公司 | The grinding attachment that a kind of bearing outer ring ball track once loads and unloads with step |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 315104 Jin Yuan Road, Yinzhou investment and business center, Zhejiang, Ningbo, China, No. 666 Patentee after: NINGBO VULCAN CERAMIC TECHNOLOGY CO.,LTD. Address before: 315104 No. 666 Jin Yuan Road, Yinzhou investment center, Ningbo, Zhejiang, Yinzhou District Patentee before: NINGBO VULCAN MECHANICAL SEALS MANUFACTURING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 315104 Jin Yuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 666 Patentee after: NINGBO VULCAN TECHNOLOGY Co.,Ltd. Address before: 315104 Jin Yuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 666 Patentee before: NINGBO VULCAN CERAMIC TECHNOLOGY CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |
|
| CX01 | Expiry of patent term |